JAVA 聊天窗口

//聊天窗口
import java.awt.*;
import javax.swing.*;
public class Jiemian9 extends JFrame{

    JTextArea wby; //文本域
    JPanel mb;    //面板
    JComboBox xlk;    //下拉框
    JButton an;    //按钮
    JTextField wbk;    //文本框
    JScrollPane gd;    //滚动

    public static void main(String[] args){
        //运行本类的构造方法
        Jiemian9 jiemian    =    new Jiemian9();

    }

    public Jiemian9(){
        //添加
        wby    =    new JTextArea();
        mb    =    new JPanel();
        String[] lt    =    {"悟空","八戒","沙僧","唐僧"};
        xlk    =    new JComboBox(lt);
        an    =    new JButton("发送");
        wbk    =    new JTextField(10);
        gd    =    new JScrollPane(wby);

        //添加到面板
        mb.add(xlk);
        mb.add(wbk);
        mb.add(an);
        this.add(gd);
        this.add(mb,BorderLayout.SOUTH);

        //设置窗口标题
        this.setTitle("聊天窗口");
        //设置窗口的宽高
        this.setSize(500,350);
        //添加标题栏图片
        this.setIconImage((new ImageIcon("image/1.jpg")).getImage());
        //设置窗口出现对于屏幕的位置
        this.setLocation(100,100);
        //禁止拉大拉小
        this.setResizable(false);
        //关闭窗口后释放资源
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //输出窗口
        this.setVisible(true);
    }

}